[20.01] FRII Quasars and Radio Galaxies: Correlated Asymmetries and the Unification Scheme

I. Fernini (UAE Univ.)

This paper discusses several asymmetries (lobe distance,
flux density, jet sidedness, spectral index, depolarization,
and emission line) observed in two samples of 13 FRII
quasars and 13 FRII radio galaxies (redshift between 0.3 and
2). The implications of these asymmetries for the unified
model are discussed. Our results showed that while some
asymmetries (i.e., jet sidedness) favor the viewing angle
effect as a possible cause of the observed difference
between the quasars and the radio galaxies, other
asymmetries (i.e., depolarization) require other effects in
addition to the orientation effect.